21320754

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2297}}^1$

素因数の和:2339

約数の個数: 64

約数和(自身を含む): 55593216

約数和(自身を除く): 34272462

約数列:

[1, 2, 3, 6, 7, 13, 14, 17, 21, 26, 34, 39, 42, 51, 78, 91, 102, 119, 182, 221, 238, 273, 357, 442, 546, 663, 714, 1326, 1547, 2297, 3094, 4594, 4641, 6891, 9282, 13782, 16079, 29861, 32158, 39049, 48237, 59722, 78098, 89583, 96474, 117147, 179166, 209027, 234294, 273343, 418054, 507637, 546686, 627081, 820029, 1015274, 1254162, 1522911, 1640058, 3045822, 3553459, 7106918, 10660377, 21320754]

約数ペア:

[(1, 21320754), (2, 10660377), (3, 7106918), (6, 3553459), (7, 3045822), (13, 1640058), (14, 1522911), (17, 1254162), (21, 1015274), (26, 820029), (34, 627081), (39, 546686), (42, 507637), (51, 418054), (78, 273343), (91, 234294), (102, 209027), (119, 179166), (182, 117147), (221, 96474), (238, 89583), (273, 78098), (357, 59722), (442, 48237), (546, 39049), (663, 32158), (714, 29861), (1326, 16079), (1547, 13782), (2297, 9282), (3094, 6891), (4594, 4641)]